Download GPG Suite
Start the download by pressing the red icon.
Start the installation by double-clicking the left icon.
Click continue. You will be guided through the installation by the download assistant.
Enter your name and email address; create a passphrase.
Attention! The program is as secure as your passphrase. Be sure to use an appropriate passphrase.
When writing your next email you will notice a few new icons.
Press the red-framed icon in the top right corner to use the security function. This allows the recipient to verify that no third party illicitly surveilled the correspondence.
Click on the lock icon to encrypt your message. Your content can only be read by the recipient entering his passphrase.